农学 >>> 农学总论 作物学 园艺学 土壤学 植物保护学 农药学 林学 畜牧学 兽医学 水产学
搜索结果: 1-8 共查到农学 oriental spruce相关记录8条 . 查询时间(0.046 秒)
Human induced pressures on the natural resources are still in progress and the conservation efforts, too. The need for sufficient knowledge and data for the decision makers is obvious. This study is a...
In this study, we developed an individual tree basal area growth model for oriental spruce (Picea orientalis (L.) Link) growing in mixture with oriental beech (Fagus orientalis Lipsky) in the Artvin, ...
The aim of the study was to investigate the effects of forest roads on foliage discoloration levels of oriental spruce Picea orientalis (L.) Link by Ips typographus (L.), considering location, ground ...
The impacts of three timber harvesting techniques (manpower, skidder, and skyline) on residual trees, seedlings, and timber products were investigated in natural oriental spruce stands in Artvin, Turk...
In this study, sapwood and heartwood samples obtained from Oriental spruce growing naturally only in East Black Sea region were investigated. Trees of 36-44 cm diameter were obtained from the Karahav...
In this study, the influence of stem height on the internal morphological properties of the Oriental spruce [Picea orientalis (L.) Link.] were investigated. Sample trees of 36-44 cm in diameter and 1...
This study attempted to describe the variations in the annual growth of Oriental spruce and to give a mean annual ring curve using annual rings. Another purpose was to determine the standardized chro...
Soil respiration is a good indicator of soil quality. In this study, the influence of species type and sampling time on soil respiration in young and old oriental spruce (Picea orientalis (L.) Link.)...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...